19-2090; Rev 2; 4/04
0.1%, 25ppm, SC70 Shunt Voltage Reference
with Multiple Reverse Breakdown Voltages
The MAX6138 is a precision, two-terminal shunt mode,
bandgap voltage reference available in fixed reverse
breakdown voltages of 1.2205V, 2.048V, 2.5V, 3.0V,
3.3V, 4.096V, and 5.0V. Ideal for space-critical applications, the MAX6138 is offered in the subminiature 3-pin
SC70 surface-mount package (1.8mm X 1.8mm), 50%
smaller than comparable devices in SOT23 surfacemount packages.
Laser-trimmed resistors ensure precise initial accuracy.
With a 25ppm/°C temperature coefficient, the device is
offered in three grades of initial accuracy ranging from
0.1% to 0.5%. The MAX6138 has a 60µA to 15mA shuntcurrent capability with low-dynamic impedance, ensuring
stable reverse breakdown voltage accuracy over a wide
range of operating temperatures and currents.
The MAX6138 does not require an external stabilizing
capacitor while ensuring stability with capacitive loads.
The MAX6138 is a higher precision device in a smaller
package than the LM4040/LM4050.
Applications
Portable, Battery-Powered Equipment
Notebook Computers
Cell Phones
Industrial Process Control
Features
♦ Ultra-Small 3-Pin SC70 Package
♦ 0.1% (max) Initial Accuracy
♦ 25ppm/°C (max) Temperature Coefficient
Guaranteed Over -40°C to +85°C Temperature
Range
♦ Wide Operating Current Range: 60µA to 15mA
♦ Low 28µVRMS Output Noise (10Hz to 10kHz)
♦ 1.2205V, 2.048V, 2.5V, 3.0V, 3.3V, 4.096V, and 5.0V
Fixed Reverse Breakdown Voltages
♦ No Output Capacitors Required
♦ Stable with Capacitive Loads
Selector Guide
TEMP
RANGE
PART
OUTPUT
PINVOLTAGE
PACKAGE
(V)
MAX6138_EXR12-T -40°C to +85°C
3 SC70-3
1.2205
MAX6138_EXR21-T -40°C to +85°C
3 SC70-3
2.0480
MAX6138_EXR25-T -40°C to +85°C
3 SC70-3
2.5000
MAX6138_EXR30-T -40°C to +85°C
3 SC70-3
3.0000
MAX6138_EXR33-T -40°C to +85°C
3 SC70-3
3.3000
MAX6138_EXR41-T -40°C to +85°C
3 SC70-3
4.0960
MAX6138_EXR50-T -40°C to +85°C
3 SC70-3
5.0000
Ordering Information appears at end of data sheet.
Typical Operating Circuit
VS
Pin Configuration
RS
TOP VIEW
ISHUNT + ILOAD
ILOAD
+
VR
1
MAX6138
3
N.C.*
ISHUNT
- 2
SC70
MAX6138
*PIN 3 MUST BE LEFT FLOATING
OR CONNECTED TO PIN 2.
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
MAX6138
General Description
MAX6138
0.1%, 25ppm, SC70 Shunt Voltage Reference
with Multiple Reverse Breakdown Voltages
ABSOLUTE MAXIMUM RATINGS
Reverse Current (cathode to anode) ..................................20mA
Forward Current (anode to cathode) ..................................10mA
Continuous Power Dissipation (TA = +70°C)
3-Pin SC70 (derate 2.17mW/°C above +70°C) ...........174mW
Operating Temperature Range .........................-40°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature ......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS—MAX6138_12 (1.2205V)
(IR = 100µA, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
MAX6138A (0.1%)
1.2193
1.2205
1.2217
MAX6138B (0.2%)
1.2181
1.2205
1.2229
MAX6138C (0.5%)
1.2144
UNITS
Reverse Breakdown Voltage
(Note 2)
VR
1.2205
1.2266
Minimum Operating Current
IRMIN
45
60
µA
TC
4
25
ppm/°C
IRMIN ≤ IR ≤ 1mA
0.3
1.0
1mA ≤ IR ≤ 12mA
2.5
8.0
ZR
IR = 1mA, f = 120Hz, IAC = 0.1IR
0.3
0.8
eN
IR = 10µA, 10Hz ≤ f ≤ 10kHz
t = 1000h
20
µVRMS
120
ppm
Reverse Voltage
Temperature Coefficient
(Notes 2, 3)
Reverse Breakdown Voltage
Change with Operating
Current Change
Reverse Dynamic
Impedance (Note 3)
Wideband Noise
Reverse Breakdown Voltage
2
∆VR/∆IR
∆VR
TA = +25°C
V
mV
_______________________________________________________________________________________
Ω
0.1%, 25ppm, SC70 Shunt Voltage Reference
with Multiple Reverse Breakdown Voltages
(IR = 100µA, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
Reverse Breakdown
Voltage (Note 2)
VR
Minimum Operating Current
Reverse Voltage
Temperature Coefficient
(Notes 2, 3)
Reverse Breakdown
Voltage Change with
Operating Current Change
CONDITIONS
TA = +25°C
MIN
TYP
MAX
MAX6138A (0.1%)
2.0460
2.0480
2.0500
MAX6138B (0.2%)
2.0439
2.0480
2.0521
MAX6138C (0.5%)
2.0378
UNITS
V
2.0480
2.0582
IRMIN
45
65
µA
TC
4
25
ppm/°C
IRMIN ≤ IR ≤ 1mA
0.3
1.0
1mA ≤ IR ≤ 15mA
2.5
8.0
0.8
∆VR/∆IR
mV
Reverse Dynamic
Impedance (Note 3)
ZR
IR = 1mA, f = 120Hz, IAC = 0.1IR
0.3
Wideband Noise
eN
10Hz ≤ f ≤ 10kHz
28
µVRMS
t = 1000h
120
ppm
Reverse Breakdown
Voltage Long-Term Stability
∆VR
Ω
ELECTRICAL CHARACTERISTICS—MAX6138_25 (2.5V)
(IR = 100µA, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
Reverse Breakdown Voltage
(Note 2)
Minimum Operating Current
Reverse Voltage Temperature
Coefficient (Notes 2, 3)
SYMBOL
MIN
TYP
MAX
MAX6138A (0.1%)
2.4975
2.5000
2.5025
MAX6138B (0.2%)
2.4950
2.5000
2.5050
MAX6138C (0.2%)
2.4875
2.5000
2.5125
IRMIN
45
65
µA
TC
4
25
ppm/°C
VR
CONDITIONS
TA = +25°C
UNITS
V
Reverse Breakdown Voltage
Change with Operating Current
Change
∆VR/∆IR
IRMIN ≤ IR ≤ 1mA
0.3
1.0
mV
Reverse Breakdown Voltage
Change with Operating Current
Change
∆VR/∆IR
1mA ≤ IR ≤ 15mA
2.5
8.0
mV
Reverse Dynamic Impedance
(Note 3)
ZR
IR = 1mA, f = 120Hz, IAC = 0.1IR
0.3
0.8
Ω
Wideband Noise
eN
10Hz ≤ f ≤ 10kHz
35
µVRMS
t = 1000h
120
ppm
Reverse Breakdown Voltage
Long-Term Stability
∆VR
_______________________________________________________________________________________
3
MAX6138
ELECTRICAL CHARACTERISTICS—MAX6138_21 (2.048V)
MAX6138
0.1%, 25ppm, SC70 Shunt Voltage Reference
with Multiple Reverse Breakdown Voltages
ELECTRICAL CHARACTERISTICS—MAX6138_30 (3.0V)
(IR = 100µA, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
Reverse Breakdown
Voltage (Note 2)
Minimum Operating
Current
Reverse Voltage
Temperature Coefficient
(Notes 2, 3)
Reverse Breakdown
Voltage Change with
Operating Current Change
SYMBOL
MIN
TYP
MAX
MAX6138A (0.1%)
2.9970
3.0000
3.0030
MAX6138B (0.2%)
2.9940
3.0000
3.0060
MAX6138C (0.5%)
2.9850
3.0000
3.0150
IRMIN
45
65
µA
TC
4
25
ppm/°C
IRMIN ≤ IR ≤ 1mA
0.3
1.0
1mA ≤ IR ≤ 15mA
2.5
8.0
0.8
VR
∆VR/∆IR
CONDITIONS
TA = +25°C
UNITS
V
mV
Reverse Dynamic
Impedance (Note 3)
ZR
IR = 1mA, f =120Hz, IAC = 0.1IR
0.3
Wideband Noise
eN
10Hz ≤ f ≤ 10kHz
45
µVRMS
t = 1000h
120
ppm
Reverse Breakdown
Voltage Long-Term
Stability
∆VR
Ω
ELECTRICAL CHARACTERISTICS—MAX6138_33 (3.3V)
(IR = 100µA, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
Reverse Breakdown
Voltage (Note 2)
Minimum Operating Current
Reverse Voltage
Temperature Coefficient
(Notes 2, 3)
Reverse Breakdown
Voltage Change with
Operating Current Change
Reverse Dynamic
Impedance (Note 3)
Wideband Noise
Reverse Breakdown
Voltage Long-Term
Stability
4
SYMBOL
VR
CONDITIONS
TA = +25°C
MIN
TYP
MAX
MAX6138A (0.1%)
3.2967
3.3000
3.3033
MAX6138B (0.2%)
3.2934
3.3000
3.3066
MAX6138C (0.5%)
3.2835
UNITS
V
3.3000
3.3165
IRMIN
45
67
µA
TC
4
25
ppm/°C
0.3
1.0
∆VR/∆IR
IRMIN ≤ IR ≤ 1mA
mV
1mA ≤ IR ≤ 15mA
8.0
Ω
ZR
IR = 1mA, f =120Hz, IAC = 0.1IR
0.3
eN
10Hz ≤ f ≤ 10kHz
50
µVRMS
t = 1000h
120
ppm
∆VR
_______________________________________________________________________________________
0.8
0.1%, 25ppm, SC70 Shunt Voltage Reference
with Multiple Reverse Breakdown Voltages
(IR = 100µA, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
Reverse Breakdown
Voltage (Note 2)
Minimum Operating
Current
Reverse Voltage
Temperature Coefficient
(Notes 2, 3)
Reverse Breakdown
Voltage Change with
Operating Current Change
SYMBOL
MIN
TYP
MAX
MAX6138A (0.1%)
4.0919
4.0960
4.1001
MAX6138B (0.2%)
4.0878
4.0960
4.1042
MAX6138C (0.5%)
4.0755
4.0960
4.1165
IRMIN
50
73
µA
TC
4
25
ppm/°C
IRMIN ≤ IR ≤ 1mA
0.5
1.2
1mA ≤ IR ≤ 15mA
3.0
10.0
1.0
VR
∆VR/∆IR
CONDITIONS
TA = +25°C
UNITS
V
mV
Reverse Dynamic
Impedance (Note 3)
ZR
IR = 1mA, f = 120Hz, IAC = 0.1IR
0.5
Wideband Noise
eN
10Hz ≤ f ≤ 10kHz
64
µVRMS
t = 1000h
120
ppm
Reverse Breakdown
Voltage Long-Term
Stability
∆VR
Ω
ELECTRICAL CHARACTERISTICS—MAX6138_50 (5.0V)
(IR = 100µA, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
Reverse Breakdown
Voltage (Note 2)
SYMBOL
VR
Minimum Operating Current
Reverse Voltage
Temperature Coefficient
(Notes 2, 3)
Reverse Breakdown
Voltage Change with
Operating Current Change
CONDITIONS
TA = +25°C
MIN
TYP
MAX
MAX6138A (0.1%)
4.9950
5.0000
5.0050
MAX6138B (0.2%)
4.9900
5.0000
5.0100
MAX6138C (0.5%)
4.9750
UNITS
V
5.0000
5.0250
IRMIN
54
80
µA
TC
4
25
ppm/°C
IRMIN ≤ IR ≤ 1mA
0.5
1.4
1mA ≤ IR ≤ 15mA
3.5
12.0
1.1
∆VR/∆IR
mV
Reverse Dynamic
Impedance (Note 3)
ZR
IR = 1mA, f = 120Hz, IAC = 0.1IR
0.5
Wideband Noise
eN
10Hz ≤ f ≤ 10kHz
80
µVRMS
t = 1000h
120
ppm
Reverse Breakdown
Voltage Long-Term Stability
∆VR
Ω
Note 1: All devices are 100% production tested at +25°C and are guaranteed by correlation for TA = TMAX to TMIN, as specified.
Note 2: TC is measured by the “box” method, i.e. (VMAX - VMIN) / (TMAX - TMIN)
Note 3: Guaranteed by design.
_______________________________________________________________________________________
5
MAX6138
ELECTRICAL CHARACTERISTICS—MAX6138_41 (4.096V)
Typical Operating Characteristics
(IR = 100µA, TA = +25°C, unless otherwise noted.)
MAX6138_12
TEMPERATURE DRIFT
MAX6138_30
3
MAX6138_25
MAX6138_20
2
MAX6138_12
2.5010
1.2210
REVERSE VOLTAGE (V)
REVERSE VOLTAGE (V)
MAX6138_41
4
2.5015
MAX6138 toc02
MAX6138_50
5
1.2215
MAX6138 toc01
6
MAX6138_25
TEMPERATURE DRIFT
MAX6138 toc03
REVERSE CHARACTERISTICS AND
MINIMUM OPERATING CURRENT
REVERSE VOLTAGE (V)
1.2205
1.2200
1
2.5005
2.5000
2.4995
2.4990
2.4895
3 TYPICAL PARTS
0
3 TYPICAL PARTS
2.4890
1.2195
20
40
60
80
-40
100
-20
0
20
40
60
-20
0
MAX6138_12
REVERSE VOLTAGE vs. ISHUNT
5.002
5.001
5.000
4.999
4.998
4.997
5.0
4.5
REVERSE VOLTAGE CHANGE (mV)
MAX6138 toc04
5.003
TA = +85°C
4.0
3.5
3.0
TA = +25°C
2.5
2.0
1.5
TA = -40°C
1.0
0.5
3 TYPICAL PARTS
4.996
0
-40
-20
0
20
40
TEMPERATURE (°C)
60
80
20
40
TEMPERATURE (°C)
MAX6138_50
TEMPERATURE DRIFT
6
-40
80
TEMPERATURE (°C)
REVERSE CURRENT (µA)
MAX61438 toc05
0
REVERSE VOLTAGE (V)
MAX6138
0.1%, 25ppm, SC70 Shunt Voltage Reference
with Multiple Reverse Breakdown Voltages
0
5
10
15
20
ISHUNT (mA)
_______________________________________________________________________________________
60
80
0.1%, 25ppm, SC70 Shunt Voltage Reference
with Multiple Reverse Breakdown Voltages
MAX6138_25
REVERSE VOLTAGE vs. ISHUNT
MAX6138_50
REVERSE VOLTAGE vs. ISHUNT
4.5
3.5
3.0
TA = +25°C
2.5
2.0
1.5
MAX61438 toc07
TA = +85°C
REVERSE VOLTAGE CHANGE (mV)
REVERSE VOLTAGE CHANGE (mV)
4.5
4.0
5.0
MAX61438 toc06
5.0
TA = -40°C
1.0
0.5
4.0
TA = +85°C
3.5
3.0
TA = +25°C
2.5
2.0
1.5
TA = -40°C
1.0
0.5
0
0
0
5
10
15
20
0
5
10
15
20
ISHUNT (mA)
ISHUNT (mA)
MAX6138_12
LOAD-TRANSIENT RESPONSE
MAX6138_25
LOAD-TRANSIENT RESPONSE
MAX6138 toc09
MAX6138 toc08
+25µA
+25µA
-25µA
-25µA
VR AC-COUPLED
10mV/div
VR AC-COUPLED
10mV/div
10µs/div
4µs/div
ISHUNT = 100µA ±25µA
RL = 48kΩ
ISHUNT = 100µA
RL = 100kΩ
ISHUNT + ILOAD
VB
1kΩ
+
-
RL
VR
VGEN
Figure 1. Load-Transient Circuit
_______________________________________________________________________________________
7
MAX6138
Typical Operating Characteristics (continued)
(IR = 100µA, TA = +25°C, unless otherwise noted.)
MAX6138
0.1%, 25ppm, SC70 Shunt Voltage Reference
with Multiple Reverse Breakdown Voltages
Typical Operating Characteristics (continued)
(IR = 100µA, TA = +25°C, unless otherwise noted.)
MAX6138_50
LOAD-TRANSIENT RESPONSE
MAX6138_12
LOAD-TRANSIENT RESPONSE
MAX6138 toc10
MAX6138 toc11
+25µA
+250µA
-25µA
-250µA
VR AC-COUPLED
20mV/div
VR AC-COUPLED
2.0mV/div
40µs/div
10µs/div
ISHUNT = 100µA
RL = 100kΩ
ISHUNT = 1mA
RL = 10kΩ
MAX6138_50
LOAD-TRANSIENT RESPONSE
MAX6138_25
LOAD-TRANSIENT RESPONSE
MAX6138 toc13
MAX6138 toc12
+250µA
+250µA
-250µA
-250µA
VR AC-COUPLED
2mV/div
VR AC-COUPLED
10mV/div
40µs/div
10µs/div
ISHUNT = 1mA
RL = 10kΩ
ISHUNT = 1mA
RL = 10kΩ
RS
VIN
1Hz RATE
50%
DUTY CYCLE
VR
Figure 2. Startup Characteristics Test Circuit
8
_______________________________________________________________________________________
0.1%, 25ppm, SC70 Shunt Voltage Reference
with Multiple Reverse Breakdown Voltages
MAX6138_12
LOAD-TRANSIENT RESPONSE
MAX6138_25
LOAD-TRANSIENT RESPONSE
MAX6138 toc14
MAX6138 toc15
+2.5mA
+2.5mA
-2.5mA
-2.5mA
VR AC-COUPLED
100mV/div
VR AC-COUPLED
5mV/div
10µs/div
10µs/div
ISHUNT = 10mA
RL = 1kΩ
ISHUNT = 10mA
RL = 1kΩ
MAX6138_12
STARTUP CHARACTERISTICS
MAX6138_50
LOAD-TRANSIENT RESPONSE
MAX6138 toc17
MAX6138 toc16
5V
+2.5mA
-2.5mA
VIN
0
1.2V
VR AC-COUPLED
100mV/div
0
VOUT
200ns/div
40µs/div
ISHUNT = 100µA
RS = 30kΩ
MAX6138_25
STARTUP CHARACTERISTICS
MAX6138_12
OUTPUT IMPEDANCE
vs. FREQUENCY
MAX6138_50
STARTUP CHARACTERISTICS
MAX6138 toc18
MAX6138 toc19
VIN
1000
CL = 0
5V
5V
VIN
0
0
5V
VOUT
IMPEDANCE (Ω)
100
0
2V
VOUT
10
IR = 150µA
1
CL = 1µF
0
IR = 1mA
0.1
2µs/div
ISHUNT = 100µA
RS = 30kΩ
MAX6138 toc20
ISHUNT = 10mA
RL = 1kΩ
100µs/div
ISHUNT = 100µA
RS = 16kΩ
100
1k
10k
100k
1M
FREQUENCY (Hz)
_______________________________________________________________________________________
9
MAX6138
Typical Operating Characteristics (continued)
(IR = 100µA, TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics (continued)
(IR = 100µA, TA = +25°C, unless otherwise noted.)
MAX6138_25
OUTPUT IMPEDANCE vs. FREQUENCY
MAX6138_50
OUTPUT IMPEDANCE vs. FREQUENCY
CL = 1µF
MAX6138 toc22
100
MAX61438 toc21
1000
CL = 0
IMPEDANCE (Ω)
IMPEDANCE (Ω)
100
IR = 150µA
10
CL = 0
10
IR = 150µA
IR = 1mA
1
1
CL = 1µF
IR = 1mA
0.1
0.1
1
10
100
1000
0.1
1
10
100
FREQUENCY (Hz)
FREQUENCY (Hz)
MAX6138_12
NOISE vs. FREQUENCY
MAX6138_25
NOISE vs. FREQUENCY
10,000
MAX6138 toc23
NOISE (nV/√Hz)
10,000
1000
1000
100
100
1
10
100
1k
1
10k
10
100
1k
FREQUENCY (Hz)
FREQUENCY (Hz)
MAX6138_50
NOISE vs. FREQUENCY
NOISE (nV/√Hz)
MAX6138 toc25
10,000
1000
100
1
10
100
1k
10k
FREQUENCY (Hz)
10
1000
MAX6138 toc24
0.1
NOISE (nV√Hz)
MAX6138
0.1%, 25ppm, SC70 Shunt Voltage Reference
with Multiple Reverse Breakdown Voltages
______________________________________________________________________________________
10k
0.1%, 25ppm, SC70 Shunt Voltage Reference
with Multiple Reverse Breakdown Voltages
PIN
NAME
FUNCTION
1
+
Positive Terminal of the Shunt Reference
2
-
Negative Terminal of the Shunt Reference
3
N.C.
No Connection. Leave this pin unconnected or connect to Pin 2.
Detailed Description
The MAX6138 shunt reference uses the bandgap principle to produce a stable, accurate voltage. The device
behaves similarly to an ideal zener diode; a fixed voltage is maintained across its output terminals when
biased with 60µA to 15mA of reverse current. The
MAX6138 behaves similarly to a silicon diode when
biased with forward currents up to 10mA.
Figure 3 shows a typical operating circuit. The
MAX6138 is ideal for providing a stable reference from
a high-voltage power supply.
VS
ISHUNT + ILOAD
RS
ILOAD
VR
ISHUNT
MAX6138
Applications Information
The MAX6138’s internal pass transistor is used to maintain a constant output voltage (VSHUNT) by sinking the
necessary amount of current across a source resistor.
The source resistance (RS) is determined from the load
current (ILOAD) range, supply voltage (VS) variations,
VSHUNT, and desired quiescent current.
Choose the value of RS when VS is at a minimum and
ILOAD is at a maximum. Maintain a minimum ISHUNT of
60µA at all times. The RS value should be large enough
to keep ISHUNT less than 15mA for proper regulation
when VS is maximum and ILOAD is at a minimum. To
prevent damage to the device, ISHUNT should never
exceed 20mA.
Therefore, the value of RS is bounded by the following
equation:
[VS(MIN) - VR] / [60µA + ILOAD(MAX)] > RS >
Figure 3. Typical Operating Circuit
Output Capacitance
The MAX6138 does not require an external capacitor
for operational stability and is stable for any output
capacitance.
Temperature Performance
The MAX6138 typically exhibits an output voltage temperature coefficient within ±4ppm/°C. The polarity of
the temperature coefficient may be different from one
device to another; some may have positive coefficients,
and others may have negative coefficients.
Chip Information
[VS(MAX) - VR] / [20mA + ILOAD(MIN)]
TRANSISTOR COUNT: 70
Choosing a larger resistance minimizes the total power
dissipation in the circuit by reducing the shunt current
(PD(TOTAL) = VS X ISHUNT). Provide a safety margin to
incorporate the worst-case tolerance of the resistor
used. Ensure that the resistor’s power rating is adequate, using the following general power equation:
PDR = ISHUNT ✕ (VS(MAX) - VSHUNT)
PROCESS: BiCMOS
______________________________________________________________________________________
11
MAX6138
Pin Description
MAX6138
0.1%, 25ppm, SC70 Shunt Voltage Reference
with Multiple Reverse Breakdown Voltages
Ordering Information
PART
OUTPUT
VOLTAGE
(V)
INITIAL
ACCURACY
(%)
TEMP RANGE
PIN-PACKAGE
TOP MARK
MAX6138AEXR12-T
1.2205
0.1
-40°C to +85°C
3 SC70-3
AEW
MAX6138BEXR12-T
1.2205
0.2
-40°C to +85°C
3 SC70-3
AEX
MAX6138CEXR12-T
1.2205
0.5
-40°C to +85°C
3 SC70-3
AEY
MAX6138AEXR21-T
2.0480
0.1
-40°C to +85°C
3 SC70-3
AFA
MAX6138BEXR21-T
2.0480
0.2
-40°C to +85°C
3 SC70-3
AFB
MAX6138CEXR21-T
2.0480
0.5
-40°C to +85°C
3 SC70-3
AFC
MAX6138AEXR25-T
2.5000
0.1
-40°C to +85°C
3 SC70-3
AFE
MAX6138BEXR25-T
2.5000
0.2
-40°C to +85°C
3 SC70-3
AFF
MAX6138CEXR25-T
2.5000
0.5
-40°C to +85°C
3 SC70-3
AFG
MAX6138AEXR30-T
3.0000
0.1
-40°C to +85°C
3 SC70-3
AFI
MAX6138BEXR30-T
3.0000
0.2
-40°C to +85°C
3 SC70-3
AFJ
MAX6138CEXR30-T
3.0000
0.5
-40°C to +85°C
3 SC70-3
AFK
MAX6138AEXR33-T
3.3000
0.1
-40°C to +85°C
3 SC70-3
ANG
MAX6138BEXR33-T
3.3000
0.2
-40°C to +85°C
3 SC70-3
ANH
MAX6138CEXR33-T
3.3000
0.5
-40°C to +85°C
3 SC70-3
ANI
MAX6138AEXR41-T
4.0960
0.1
-40°C to +85°C
3 SC70-3
AFM
MAX6138BEXR41-T
4.0960
0.2
-40°C to +85°C
3 SC70-3
AFN
MAX6138CEXR41-T
4.0960
0.5
-40°C to +85°C
3 SC70-3
AFO
MAX6138AEXR50-T
5.0000
0.1
-40°C to +85°C
3 SC70-3
AFQ
MAX6138BEXR50-T
5.0000
0.2
-40°C to +85°C
3 SC70-3
AFR
MAX6138CEXR50-T
5.0000
0.5
-40°C to +85°C
3 SC70-3
AFS
12
______________________________________________________________________________________
0.1%, 25ppm, SC70 Shunt Voltage Reference
with Multiple Reverse Breakdown Voltages
SC70, 3L.EPS
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 13
© 2004 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
MAX6138
Package Information
工商网监
湘ICP备2023018690号
